#include <stdio.h>   /*进行预处理*/
#include <float.h>

/*获取所有浮点数数据类型的所占字节数*/
int main()
{
    printf("float:%d\n",sizeof(float));
    printf("double:%d\n",sizeof(double));
    printf("long double:%d\n",sizeof(long double));

    return 0;
}